baber/WOPTO huggingface dataset:
Patent GB-956787-A (GB)
Title: Apparatus for controlling the tension in tapes
Inventor: GRIEVE GEORGE THOMAS WILSON
Filed: 1960-09-02
Abstract: 956,787. Bearings. BRITISH INSULATED CALLENDER'S CABLES Ltd. Sept. 1, 1961 [Sept. 2, 1960], No. 30355/60. Heading F2A. [Also in Divisions B6 and B8] The tension in tape drawn off a roll is controlled by withdrawing the tape so as to rotate a rotatable member 4 while applying to the roll through the member a braking torque which is derived from the elastic deformation of one or more metal surfaces and the value of which is independent of the speed at which the member rotates, the axial thrust between the races of anti-thrust bearings lubricated by a lubricant of low viscosity, the races rotating relatively to one another at a speed equal or proportional to that of the member 4 and providing circumferential or annular tracks for balls or rollers arranged between them. The torque results from the work done in elastically deforming the balls &c. and their races and is set as desired by adjusting the pressure between the races. As shown, two bearings providing annular races are provided, each having balls 25 between races 27, 26, the latter bearing on the faces of a ring 33 rotating with the sleeve 7, while the races 27 are held against rotation by being clamped between the end flange of a bush 29 keyed to a spindle 6 and a nut 32 screwed to the end of the bush, washers 41 of chosen thickness being interposed.
Patent GB-227810-A (GB)
Title: Improvements in electromagnetically actuated electric switch mechanism
IPC: H01H51/08
Filed: 1924-12-17
Abstract: 227,810. Commanditaire Vennootschap Froger's Electriciteits Maatschappij. Jan. 19, 1924, [Convention date]. E l e c t r o magnetic switches.-In order to control lamps, motors and other electrical apparatus from a distant point, and thereby avoid personal contact with high potentials, a ratchet contactdisc 15 with contacts 16 on its alternate teeth is rotated stepby-step by an electromagnet 2, 3 energized from a local low-tension source by the momentarv closure of a local switch. The ratchet contact disc 15 is mounted friction-tight on a spindle 12 below a base on which the electromagnets are mounted. The spindle has secured to it an armature with wing-shaped projections 13, 14 co-operating with shaped fixed pole-pieces 9, 10. The momentary energization of the electromagnet rotates the ratchet wheel so that the lamp or other main circuit is completed between the contacts 18, 19 and through the ring 17. When the electromagnet is de-energized, the armature returns under the action of the spring 24 or of a weight, the ratchet wheel remaining stationary. The device may be mounted in a casing in the form of a ceiling rose with the main-circuit-carrying contact-disc in a compartment isolated from the remaining mechanism.
Patent GB-533745-A (GB)
Title: Improvements in and relating to barriers for anti-tank and like purposes
IPC: F41H11/08
Filed: 1939-11-20
Abstract: 533,745. Barricades. MAY, W. J. Nov. 20, 1939, No. 30445. [Class 20 (i)] A military barrier comprises a central, shaft 1 formed of sections joined together end to end, and pointed or barbed rods 2 passing through the shaft in intersecting formation. The central shaft is formed of sections 3 each provided with a screwed projection 5 and a screwed recess 4 at opposite ends, so that the sections can be screwed together to form a rigid shaft. Each section is provided with a transverse aperture or slot 6 registering with the end of the screwed recess and adapted to receive a transverse pointed or barbed rod 7, the central portion of which is reduced and roughened so that it can be gripped by the screwed projection 5 of the adjacent shaft section. The transverse rods may be provided with barbs or with helical pointed portions at the ends. Shaft sections may be flexibly connected together by a chain 13 engaging screw caps 14, 15 screwed on to the ends of adjacent sections.
Patent GB-1507144-A (GB)
Title: Apparatus for drawing dielectric optical waveguides
IPC: C03B5/08
Filed: 1974-07-10
Abstract: 1507144 Apparatus for producing optical fibres POST OFFICE 27 June 1975 [10 July 1974] 30525/74 Heading C1M Apparatus for producing optical fibres comprises a hermetically sealed cylindrical furnace 9 in the lower end of which is disposed a double crucible comprising an inner compartment 6 for the core glass, and an outer compartment 7 for the cladding glass, guide means (e.g. tubes 26) for inhibiting lateral motion of rods 45 being supplied to the double crucible (through air-lock 40), and a port 24 for introducing or removing gas. The optical fibre is drawn down through nozzle 8. The double crucible, e.g. of Pt or SiO 2 , is supported on silica cylinders 12, 13, and downward heat loss is reduced by silica plates 10. A thermocouple 11 detects the temperature to control the heating effect of Pt-Rh windings 27. The furnace is sealed by water-cooled plates 15, 20, glass being fed in rod form to the compartments 6, 7 by tubes 26. Pipe 24 is used either to evacuate the furnace or to introduce an inert gas (e.g. CO 2 , N 2  or Ar) into the furnace (CO may be added as oxygen scavenger). Reference has been directed by the Comptroller to Specification 1,280,463.
Patent GB-144199-A (GB)
Title: Improvements in or relating to paper bag making machines
IPC: B31B19/10
Filed: 1919-12-06
Abstract: 144,199. Smith Bros., and Smith, C. J. Dec. 6, 1919. No Patent granted (Sealing fee not paid). Drawings to Specification. Paper bags, making.-A bag-making machine of the kind in which a web of paper is intermittently fed through the machine is combined with a continuous rotary printing-machine of known type, but fitted with a pair of draw-rollers by which the length of printed paper in the web supplied to the bag-making machine is regulated so as to cause the two machines to run in unison. The draw-rollers are driven from the shaft of the printing-machine at the same surface speed as the impression and printing cylinders, the speed being such as to time in with the intermittent forward travel imparted to the web by the bagmaking machine.
Patent GB-519400-A (GB)
Title: Improvements in loose-leaf binders
IPC: B42F13/00
Filed: 1938-10-22
Abstract: 519,400. Loose-leaf binders. BENNETT, P. Oct 22, 1938, No. 30584. [Class 146 (i)] Relates to binders of the type having filing- posts formed in sections screwed together, so as to be adjustable in length. To facilitate attachment and removal, the upper end of each section is formed with a transverse notch 8, Fig. 1, to be engaged by an instrument for turning the section. :The lowest section 6 of each post screws into a U-shaped metal piece 2, Fig. 3, contained in the hollow clamping-bar 1. The 'key 10, Fig. 4, of the binder has a flattened handle 9 to serve as a screw-driver, and has recesses 14 to engage around the post and projections 15 to engage in the notches 8 for turning.
Patent GB-327379-A (GB)
Title: Improved arrangement for the dynamo of internal combustion engines
IPC: F02B67/04
Filed: 1928-09-20
Abstract: 327,379. Farman, H., and Farman, M., (trading as Farman, H. et M.). Oct. 8, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Divided on 298,471, [Class 7 (iv), Internal-combustion engines, Igniting in]. Dynamos, driving.-A dynamo 37 is secured to a casing 38 which houses any suitable form of intermediate gearing between an airscrew shalt and engine, such as spur wheels 40, 41 and their spindle bearings, the casing 38 being detachably secured to the reduction gear housing 28 so that the dynamo and its driving gear may be removed as a unit. The dynamo drive is taken from a toothed annulus 36 which forms a part of the driving element 29 of the reduction gear. The invention may be used in conjunction with forms of reduction gear other than that shown in Fig. 1.
Patent GB-682965-A (GB)
Title: Improvements in refractories and material for the manufacture thereof
IPC: C04B35/51
Filed: 1949-11-29
Abstract: A refractory composition comprises thorium oxide with 1 to 10 per cent by weight of an oxide of another metal of Group IV (a) of the Periodic Table.  A chemically equivalent amount of a compound which on firing produces the oxide may be used.  Preferred compositions employ titania or zirconia and for the zirconia the preferred maximum is 5 per cent.  A temporary binder e.g. soluble starch is used to shape the mixture before firing.
Patent GB-262458-A (GB)
Title: Improvements in and relating to centrifugal pumps, and compressors and turbines and the like
IPC: F01D25/26
Filed: 1926-12-03
Abstract: 262,458. Akt.-Ges. Brown, Boveri et Cie. Dec. 7, 1925, [Convention date]. Casings. - A centrifugal pump, or blower, or a turbine dealing with a partial pressure in a system where the total pressure range is much larger, consists of a complete machine designed for the partial pressure in a housing designed for the total pressure. The apparatus shown in Fig. 1 is intended for use in a liquid circulating system. The impeller 9 on the shaft 10 is contained in an axially divided casing and the two end parts 13, 14 contain the glands 15, 16 and bearings 17, 18. This part of the apparatus forms a mechanically independent unit designed for the partial pressure dealt with and is housed in a casing 21, 22 designed to withstand the maximum pressure. This casing is divided perpendicularly to the axis and is clamped by the ring 25. The form shown in Fig. 3 is suitable for gases and vapours, and the supporting bearings 33, 34 are placed between the glands 35, 36. Four impeller wheels 37 are enclosed in an axially divided diffuser 41, 42 containing the bearings 33, 34, and these parts with the ends 45, 46 form a complete mechanical structure separate from the high pressure casing 59 and the cover 60. Sealing fluid for the glands is introduced through the pipe 49 and is withdrawn throngh the pipe 58.
Patent GB-927117-A (GB)
Title: Transmission control for motion picture cameras
IPC: G03B19/18
Filed: 1959-09-08
Abstract: 927,117. Kinematograph cameras. CONTINA BUREAUXUND RECHENMASCHINENFABRIK A.G. Sept. 8, 1959 [Sept. 13, 1958], No. 30678/59. Class 97 (1). In a kinematograph camera including a transmission control having a longitudinally displaceable actuating pin and a preselector for choosing a desired mode of operation of the camera, the actuating pin has stops which, when the pin is actuated and thereby moved into one of several end positions determined by the setting of the preselector, lie in or out of the path of a member on a rotating part of the transmission and thereby effect the chosen mode of operation. As shown, an actuating pin 3 which is keyed against rotation by a screw 10 fixed to the camera housing 1 is slidable in a bushing 7 pinned to a manually rotatable operation preselector disc 9 which has a spring-urged catch 73 locating it in the position selected. The pin 3 has two stops 31, 32 which co-operate with projections 53, 54 on a disc 5 forming part of the camera drive transmission e.g. as a flywheel. The distance that the pin 3 can move is determined by the setting of the disc 9 which determines the position of a peg 8 on the pin 3 in a circular groove 71 in the bushing 7, this groove having recesses 74, 75, 76 as shown in the developed view of the bushing in Fig. 4. When the peg is in position 92, the stop 32 is in front of projection 53 (Fig. 8) and the transmission disc 5 cannot move, i.e. the camera drive is locked. For still pictures the peg 8 is moved to the position 93 (Fig. 7), so that when the pin 3 is pressed the peg 8 enters the recess 74, stop 31 moves behind projection 54 and stop 32 moves out of the path of projection 53 so that the disc 5 can rotate once to open and close the shutter, giving a single " instantaneous " exposure. For a timed or " bulb " exposure, a cable release is attached at 33 to the pin 3 and on operation moves a stop 63 (Fig. 1) into the path of a projection 56 on the disc 5 so that this is arrested after half a revolution to hold the shutter open until the cable release is freed, when the disc rotates until arrested by stop 31 to close the shutter. For kinematographic operation, the bushing is rotated so that, on actuating pin 3, the peg 8 enters recess 75 and stops 31, 32 move out of the path of the projections 54, 53 (Fig. 6), whereupon the disc 5 rotates freely until the pin 3 is freed. If the disc 9 is rotated to the fourth position 95, the peg 8 enters and is latched in the recess 76 on pushing the pin 3, so that the disc 5 continues to rotate after manual release of the portion 34 of the pin and this mode of operation will continue until the disc 9 is rotated to free the peg 8 from recess 76. The stop 31 is provided with an extension 38 for purposes described in Specification 913,815 to which reference is made.
Patent GB-192818-A (GB)
Title: Improvements relating to coal and like cutting machines
IPC: E21C29/10
Filed: 1921-11-17
Abstract: 192,818. Wild, M. B., Dunn, W. H., and Wild &. Co., Ltd., M. B. Nov. 17, 1921. Coal-cutting machines. - In a coal-cutting machine, the main sprocket wheel a engaging the haulage chain s is arranged on a vertical axis centrally at one end of the machine and is larger than the symmetrically and oppositely arranged guide sprockets c, d. The driving mechanism comprises a pinion n adapted to be clutched either to a driven worm wheel g or to a gear m; the sprocket a is driven at low speed through gearing g, l, j, k, m, n, o, p, q, or at high speed through gearing g, n, o, p, q. The driving worm f is actuated either from the main engine or from an independent engine. Channels &c. in the machine frame guide the haulage chain when it is employed for adjusting the cutter jib. Specification 192,526 is referred to.
Patent GB-396681-A (GB)
Title: An improved method of preparing catalytic materials
IPC: C10G1/08
Filed: 1931-11-06
Abstract: A catalyst for the hydrogenation of carbonaceous materials, especially under high pressure, is obtained by dissolving molybdic acid in an alkali, preferably a 6-7 per cent solution of ammonia, and concentrating the resulting solution to a specific gravity greater than 1,0, and preferably between about 1,2 and 1,4. The molybdic acid is then precipitated by means of an acid such as hydrochloric acid which is added until the mixture contains an excess of 1-4 per cent, preferably about 3 per cent.  If other acids are used, the hydrogen ion concentration of the resulting mixture should be substantially equivalent to that of mixtures containing the above excess of hydrochloric acid.  The precipitated acid is then separated, washed with water or ammonium chloride solution, and dried at 200-212 DEG F.  The acid is then heated at an elevated temperature until rodshaped crystals of the desired size are formed.  Temperatures between 750-1500 DEG  F. may be used, but between 780-840 DEG  F. are preferred.  The molybdic acid thus prepared may be moulded into shapes, or mixed with a bonding agent such as magnesium or zinc oxides and pressed into lumps.  It may also be mixed with other catalytic materials such as tungsten or chromium oxides or sulphides, or may be deposited on inert materials having a large surface, such as alumina, silica, pumice or active charcoal.  The catalyst mixtures may be used in the form of lumps or be finely ground and suspended in the material to be treated.
Patent GB-244121-A (GB)
IPC: H03B19/10
Filed: 1925-12-05
Abstract: 244,121. Telefunken Ges. f³r Drahtlose Telegraphie. Dec. 6, 1924, [Convention date]. Thermionic generators; directive signalling.- A short-wave valve transmitter comprises a number of power amplifiers connected in parallel to a common plate or aerial circuit, and with their grid circuits excited by the several phases of an n-phase source. As shown in the Figure, an oscillator H is coupled to an artificial line K, and the grid circuits E, F, G of the three valves A, B, C are coupled to the line at points giving 120 phase displacement. The common aerial or plate circuit D is tuned to a frequency three times that of the source, and the valve grids are biassed by a battery so as to pass current during only one-quarter period of the higher frequency. For directive working, a number of spaced aerials are employed, a set of valves such as A, B, C is associated with each aerial, and the grids of these valves are excited in different phases by coupling the grid circuits of each set to an artificial line K, these lines being connected in series and energized by the source H of lower frequency. The artificial lines may be omitted if standing waves of suitable length are created in the cable by the current supplied by the source H.
Patent GB-1263125-A (GB)
Title: Substituted furan carboxylic anilides
IPC: C07D307/68
Filed: 1969-06-18
Abstract: 1,263,125. Furan carboxylic anilides. BADISCHE ANILIN- & SODA-FABRIK A.G. 18 June, 1969 [19 June, 1968], No. 30821/69. Heading C2C. Furan carboxylic anilides of general formula (wherein R is hydrogen or methyl) may be prepared by condensing 2,5-dimethyl furan carboxylic chloride with the appropriate amine in the presence of aqueous NaOH. Examples detail the preparation of the anilide and otoluidide. The compounds are useful as plant fungicides and may be employed in any of the conventional formulations.
Patent GB-195121-A (GB)
Title: Printing telegraphy
IPC: H04L17/04
Filed: 1921-11-18
Abstract: 195,121. Western Electric Co., Ltd., (Western Electric Co., Inc.). Nov. 18, 1921. Selective punching-machines.-In a keyboard mechanism for perforating a telegraph tape or transmitting code signals to a distant station, the key levers 7 pass through apertures inselecting bars which on the depression of a key are moved horizontally in the required combination to select the punches for perforating a tape or to close contacts connected to the segments of a distributor. The bars 11 - - 15 are termed positive selecting bars and bars 16 - - 20 negative selecting bars, the movement of each of the former causing the movement in the opposite direction of one of the latter, and vice versa, by means of pivoted members 25. The apertures in the bars are so positioned with respect to the levers 7 that subsequent depression of a key actuates negative bars to restore to normal all positive bars not forming part of the desired fresh combination, and also so that simultaneous depression of two keys is prevented. Of two additional bars one, 21, is actuated by the character keys only and the other 22 by the character keys and also by the carriage return and line-feed keys. The bars slide, on balls carried in apertures in pillars fastened to the base of the instrument. If the switch 41 is on its upper contact 46, the bar 22 closes contacts 70, 71 to complete the circuit of an electromagnet for operating punches to perforate a tape, but if it is on the lower contact 42, a pawl 36 attached to the bar 22 steps round a star wheel 3 to close contacts 38, 39 in the circuit of an electromagnet 40 which releases the arm 53 of the distributor 44. Five punch pins 55, 56, 57, 59, 60, Fig. 4, are provided for character perforations and one 58, for feed perforations. Each punch pin has a shoulder resting on a member 54, and a member 61 rests on the shoulders. Arms 50, Fig. 2, guided by a roller 52 are pivoted to levers 48 attached to hooks 47 on the ends of the selecting bars 11 - - 15. Movement of a selecting bar moves one of the arms 50 between a character punch pin and the L-shaped armature 63 of the electromagnet 64. The member 61 is carried on uprights fixed to the mmature 63 so that the punch pins are returned to normal on de-energization cf the electromagnet 64, by the spring 24 which returns the armature. The armature 63 also steps round a pin wheel 68 for feeding the tape. Operation of the bar 21 closes contacts 78, 79 in the circuit of an electromagnet 77, Fig. 3, which steps along an indicator in the form of a knob 74 moving in a slot 75. The knob 74 is on a rack member 72 which is stepped along by a pawl on a lever 80 connected to the armature of electromagnet 77, and is retained by a pawl 81. Actuation of the carriage return key moves a lever 83 to trip the pawls 81, 80, and the member 72 is returned to its normal position by a spring 73.
Patent GB-969194-A (GB)
Title: Modified starches and compositions such as photographic silver halide emulsions containing them
Inventor: JEFFREYS ROY ARTHUR
IPC: G03C1/30
Filed: 1959-09-11
Abstract: The solubility of dialdehyde starch in water is improved by treating it at room temperature with dilute alkali, which preferably has a strength of 0.01 N to 0.1 N. In examples, dialdehyde starch with an aldehyde content 90% of the theoretical maximum was shaken for 1 hour at room temperature with 0.0125 N or 0.025 N NaOH and the product filtered, washed and dried by mixing with acetone. The treated aldehyde starch when added in an amount of 0.0033 grams to 1 gram of gelatin raises the melting point of the gelatin from 56 to 62 DEG C. and is useful for coatings and emulsions for black- andwhite and colour photography. Specification 928,591 is referred to.
Patent GB-171704-A (GB)
Title: Improvements in or connected with the warp supply in weaving fabrics
IPC: B29D30/38
Filed: 1921-11-21
Abstract: 171,704. Naamlooze Vennootschap Stoomweverij voorheen Vissers & Eycken, and Jansen, A. W. Nov. 20, 1920, [Convention date]. Creel-frame arrangements; warps, tensioning and guiding.-In weaving fabrics for bicycles and automobile tyres &c., the warp threads are fed to the loom 7, Fig. 1, direct from bobbins 12, Figs. 1 and 3, carried by pins 9 on V-shaped carriers 10 secured to vertical frames 1. The threads pass through eyes in guides 13 and, after converging both horizontally and vertically, pass through a reed 2 mounted resiliently on a brace 8. The threads are afterwards tensioned by passing round a roller 3, which they drive. The roller is covered with a friction material, such as felt, and has front.and back tension rollers 4, 5. The warp threads finally pass over a smoothing. beam 6 to the loom.